Rotary engine.



(No Model.)

K. SEIFRIED.

ROTARY ENGINE.

(Application filed Mar. 31, 1899.)

Patented Sept. 5, |899.

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(No Model.)

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KASPER SEIFRIED, OF MAMARONEOK, NEW YORK.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 632,542, dated September 5, 1899.

I Application filed March 31, 1899. Serial No. 711,280. (No model.) l

To all wtont t may concer/t.`

Be it known that I, KASPER SEIEEIED, a citizen of the United States, residingat Mamaroneck, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification.

I have invented certain new and useful improvements in rotary engines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, and the letters of reference marked thereon, which form a part of this specification.

Figure l is a side view of my engine. Fig. 2 is a front view of the same. Fig. 3 is a vertical longitudinal section through the steamchest and part of the buckets of one wheel. Fig. 4 is a similar view through the chest and part of the buckets of the other wheel. Fig. 5 is a vertical cross-section through steamchest and both wheels on line :c uc, Fig. 3. Fig. 6 is abottom view of steam-chest, showing the arrangement of ports and packing; and Fig. 7 is a longitudinal section through the chest, showing the packing and packingchamber.

The engine is designed to provide an eiiicient motor or engine of simple construction and operation which can be operated by steam or compressed air and which can be readily reversed and run to equal advantage in either direction.

A designates the wheels, which can be made separately and placed together or preferably, as I have shown them, made substantially in one piece. They are provided with the shaft B, which is supported in the bearings O in the frame D on each side of the wheels. These wheels are provided with buckets or pockets E, which are formed by side walls or plates F F F, between which are the radial walls e e and the inclined walls ff, forming the other sides of the buckets or pockets. The buckets in each wheel are faced in opposite directions, so that the steam may strike the radial side of the buckets of either wheel, according to the direction it is desired to run the engine.

The wheels are described as two wheels,

and, in fact, if separate wheels were secured in the position shown the same result would be produced, since only one wheel at a time is acted upon by the steam.

Preferably on top 0f the wheels and covering eachset of buckets is what I call a steam-chest G,Which is adjustablysupported by the anges I I upon the bolts H H and the adjusting-nuts h 7L. The chest is so adjusted to the face of the flanges F F F that the packing in the steam-chest, which will be hereinafter described, can properly act to prevent any leakage of steam. The bolts H H are supported upon the frame D, and the nuts 7L h will prevent the chest .from moving from vany position to which it is set.

In the chest are a double set of ports-one set for each set of buckets. One set will be described with their function, which will equally apply to the other set.

K is the steam-port through which the steam passes and by its force impacts or strikes the buckets as the wheel-revolves.

L is the steam-passage or expansion-port in the chest, which conducts the steam from the buckets admitted through port' K to the buckets in advance, where a second impact is given to the wheel equal to the pressure of steam expanded from the buckets to the port L. In advance of this port is the exhaustport M. These ports are reversed in the other side of the chest to run the wheels in the opposite direction.

Figs. 5, 6, and 7 show the packing-strip in the face .of the steam-chest and the means for setting out each set automatically, according to which engine is in use. tare the packings which are placed in recesses r fr, which are deep enough to leave a space back of them. These packing-strips surround each set of ports, and `there are also cross-strips m m between the inlet and outlet of ports L L. This prevents the steam from passing to the exhaust without going through the ports L L, where it acts on the wheel before it is exhausted. Frein eachinletsteam-port K leads a passage n n into the recesses r r back of the packing, as shown in Fig. 3 and in dotted lines in Figs. 6 and 7. It will be seen that by admitting steam to one of the ports K steam will also be admitted back of the pack- IOO ing of the engine to which the steam is admitted, thereby setting out the packing against the plates or flanges F F, While at the time the packing in the other wheel is relieved of pressure, causing little or no friction. Any suitable arrangement of pipes for admitting steam may be adopted and also for carrying oft the exhaust-steam.

Havingfully explained the construction and operation of my invention, what I claim is 1. In a rotary engine the combination of a wheel containing two sets of buckets arranged to rotate the wheel in either direction, with a 'steam-chest provided With two sets of steam packings, whereby the packing is set up around the sets of ports admitting steam."

2. In a rotary engine the combination of a wheel containing two sets of buckets arranged to rotate the wheel in either direction, with a steam-chest provided with reversing steam and exhaust ports, packing for each set sur` rounding said ports and ports leading from the steam-ports back of the packings,whereby one or the other of the packings are set up on reversing the engine.

In testimony whereof I ax my signature in presence of two witnesses.

KASPER SEIFRIED.

lVitnesses:

CHARLES M. BAXTER, JOHN C. FAIRCHILD. 

